Question
How much does an infant’s hip joint angle need to be for it to be considered normal? Can a 4-month-old baby still correct hip dislocation?
Answer
For infants suspected of having congenital hip dislocation, a pelvic X-ray of both hips should be taken after 3 months of age. The hip joint’s growth and development status is assessed by measuring the acetabular angle (also known as the acetabular index). There is still a chance to correct hip dislocation at 4 months old, and doctors recommend using a harness for correction and regular follow-ups.